Replacing CPI injector

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crawlinGT

Donating Member
well im going to replace my injector and i was wandering if there is anything i should watch out for as far as the uninstalling and reinstalling. also will i have to bleed off the line pressure if so how ?
 
scooters355s10

scooters355s10

New member
Re: Replacing CPI injector

There should be a shrader valve twards the back of the intake on the high side fuel line.Just take the cap off and put the piece in the middle down to release the pressure (but if the injector is bad there probably wont be any). When u change the injector try to get the 2 lines that are inside the intake also. They get very brittle and break or will start to leak. Better to change them now instead of after u got it all back together. Its a very simple fix, not hard to do at all.
 
kentuc

kentuc

Member
Re: Replacing CPI injector

Also when placing the spiders on the nozzles of numbers 3 and 5, place the tubes over the fuel lines.
They tend to jump under pressure and will help crack those fuel lines after a while.
 
C

crawlinGT

Donating Member
Re: Replacing CPI injector

well i replaced the injector now it starts right up but it runs kind of choppy and sputters when you hit the gas any idea's. I did check the vaccum lines and the connectors.
 
kentuc

kentuc

Member
Re: Replacing CPI injector

Start off with a new set of spark plugs. The cylinders will need to dry out a little.
 
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